imagemgr.cpp

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: imagemgr.cpp,v 1.1.24.1 2004/07/09 01:51:47 hubbe Exp $
 * 
 * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
 * 
 * The contents of this file, and the files included with this file,
 * are subject to the current version of the RealNetworks Public
 * Source License (the "RPSL") available at
 * http://www.helixcommunity.org/content/rpsl unless you have licensed
 * the file under the current version of the RealNetworks Community
 * Source License (the "RCSL") available at
 * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
 * will apply. You may also obtain the license terms directly from
 * RealNetworks.  You may not use this file except in compliance with
 * the RPSL or, if you have a valid RCSL with RealNetworks applicable
 * to this file, the RCSL.  Please see the applicable RPSL or RCSL for
 * the rights, obligations and limitations governing use of the
 * contents of the file.
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL") in which case the provisions of the GPL are applicable
 * instead of those above. If you wish to allow use of your version of
 * this file only under the terms of the GPL, and not to allow others
 * to use your version of this file under the terms of either the RPSL
 * or RCSL, indicate your decision by deleting the provisions above
 * and replace them with the notice and other provisions required by
 * the GPL. If you do not delete the provisions above, a recipient may
 * use your version of this file under the terms of any one of the
 * RPSL, the RCSL or the GPL.
 * 
 * This file is part of the Helix DNA Technology. RealNetworks is the
 * developer of the Original Code and owns the copyrights in the
 * portions it created.
 * 
 * This file, and the files included with this file, is distributed
 * and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
 * KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
 * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
 * ENJOYMENT OR NON-INFRINGEMENT.
 * 
 * Technology Compatibility Kit Test Suite(s) Location:
 *    http://www.helixcommunity.org/content/tck
 * 
 * Contributor(s):
 * 
 * ***** END LICENSE BLOCK ***** */

// From include
#include "hxtypes.h"
#include "hxwintyp.h"
#include "hxresult.h"
#include "hxcom.h"
#include "ihxpckts.h"
#include "hxvsurf.h"
#include "hxfiles.h"
#include "hxerror.h"
#include "hxccf.h"

// From pncont
#include "hxmap.h"
#include "hxbuffer.h"
#include "hxslist.h"

// pnmisc
#include "unkimp.h"
#include "baseobj.h"

// From pxcomlib
#include "pxrect.h"
#include "pxcolor.h"
#include "pximage.h"
#include "pxeffect.h"
#include "pxrndcod.h"
#include "pxcmpmgr.h"

// pxrend
#include "rncodmgr.h"
#include "imghelpr.h"
#include "imagemgr.h"

// pndebug
#include "errdbg.h"
#include "hxheap.h"
#ifdef _DEBUG
#undef HX_THIS_FILE		
static char HX_THIS_FILE[] = __FILE__;
#endif

BEGIN_INTERFACE_LIST(PXImageManager)
END_INTERFACE_LIST

PXImageManager::PXImageManager()
{
    Reset();
    m_pCodecManager      = NULL;
    m_pErrorMessages     = NULL;
    m_pDisplayImage      = NULL;
    m_pHandleToImageMap  = NULL;
    m_pScratchBufferList = NULL;
    m_pCCF               = NULL;
}

PXImageManager::~PXImageManager()
{
    Deallocate();
}

HX_RESULT PXImageManager::Init(PXRenderCodecManager* pCodecMgr, IHXErrorMessages* pErrorMessages,
                               UINT32 ulW, UINT32 ulH, UINT32 ulBpp,
                               UINT32 ulFormat, BOOL bInvert,
                               UINT32 ulBackgroundColor, UINT32 ulBackgroundOpacity)
{
    HX_RESULT retVal = HXR_OK;

    if (pCodecMgr && ulW && ulH && ulBpp)
    {
        // Clear out anything that's already here
        Deallocate();
        Reset();

        // Assign member variables
        m_pCodecManager          = pCodecMgr;
        m_pCodecManager->AddRef();
        m_pErrorMessages         = pErrorMessages;
        m_pErrorMessages->AddRef();
        // try to get a common class factory from the error messages!
        m_pErrorMessages->QueryInterface(IID_IHXCommonClassFactory, (void**)&m_pCCF);
        m_ulDisplayWidth         = ulW;
        m_ulDisplayHeight        = ulH;
        m_ulDefaultBitsPerPixel  = ulBpp;
        m_ulDefaultBytesPerPixel = (ulBpp + 7) >> 3;
        m_ulDefaultPixelFormat   = ulFormat;
        m_bDefaultRowsInverted   = bInvert;
        m_ulBackgroundColor      = ulBackgroundColor;
        m_ulBackgroundOpacity    = (ulBackgroundOpacity > 255 ? 255 : ulBackgroundOpacity);

        // Create a display image object
        retVal = PXImage::CreateObject(&m_pDisplayImage);
        if (SUCCEEDED(retVal))
        {
            // Addref the image
            m_pDisplayImage->AddRef();
            // Set up the display image
            retVal = m_pDisplayImage->Create((INT32) m_ulDisplayWidth,
                                             (INT32) m_ulDisplayHeight,
                                             m_ulDefaultBitsPerPixel,
                                             m_ulDefaultPixelFormat,
                                             m_bDefaultRowsInverted);
            if (SUCCEEDED(retVal))
            {
#ifdef XXXMEH_DEBUG_LOG
                DEBUG_OUTF("c:\\realpix.log",
                           (s, "PXImageManager::Init() - created display image (w=%lu,h=%lu)\n",
                           m_ulDisplayWidth, m_ulDisplayHeight));
#endif
                // Update the background color with the opacity
                UINT32 ulAlpha = 255 - ulBackgroundOpacity;
                m_ulBackgroundColor = (m_ulBackgroundColor & 0x00FFFFFF) |
                                      ((ulAlpha << 24)     & 0xFF000000);
                // Fill the display with the background color
                retVal = m_pDisplayImage->Fill32(m_ulBackgroundColor);
                if (SUCCEEDED(retVal))
                {
                    // Set the uses-alpha flag
                    if (ulBackgroundOpacity < 255)
                    {
                        m_pDisplayImage->SetHasAlpha(TRUE);
                    }
                    // Create the map object
                    m_pHandleToImageMap = new CHXMapLongToObj();
                    if (m_pHandleToImageMap)
                    {
                        // Create the scratch image list
                        HX_DELETE(m_pScratchBufferList);
                        m_pScratchBufferList = new CHXSimpleList();
                        if (!m_pScratchBufferList)
                        {
                            retVal = HXR_OUTOFMEMORY;
                        }
                    }
                    else
                    {
                        retVal = HXR_OUTOFMEMORY;
                    }
                }
            }
        }
    }
    else
    {
        retVal = HXR_INVALID_PARAMETER;
    }

    if (FAILED(retVal))
    {
        Deallocate();
        Reset();
        HX_ASSERT(FALSE);
    }

    return retVal;
}

HX_RESULT PXImageManager::CreateImage(UINT32 ulHandle, UINT32 ulLength, const char* pszMimeType,
                                      UINT32 ulOpaqueSize)
{
#ifdef XXXMEH_DEBUG_LOG
    DEBUG_OUTF("c:\\realpix.log",
               (s, "PXImageManager::CreateImage(%lu,%lu,%s,%lu)\n",
               ulHandle, ulLength, pszMimeType, ulOpaqueSize));
#endif
    HX_RESULT retVal = HXR_OK;

    if (ulHandle && ulLength && pszMimeType)
    {
        if (m_pHandleToImageMap)
        {
            // Check to see if there's already an entry for this handle
            BOOL  bNeedCreate   = TRUE;
            void* pVoid         = NULL;
            BOOL  bEntryPresent = m_pHandleToImageMap->Lookup((LONG32) ulHandle, pVoid);
            if (bEntryPresent)
            {
                // There was already an entry for this image, so
                // we will check to see if we have already successfully
                // decoded the whole image. If so, then we will flag this
                // image's data packets to be ignored. If not, then we will
                // blow this image away and try to receive it again.
                // XXXMEH - later, when we update the wire format to
                // be more precise about what part of the file is being
                // sent in every packet, then we won't have to blow away
                // the whole image - we can selectively replace missing
                // packets.
                //
                // Get the PXImageHelper object
                PXImageHelper* pHelper = (PXImageHelper*) pVoid;
                if (pHelper->AllBytesDecoded() && !pHelper->DecodeFailed())
                {
                    // Set the ignore data packets flag
                    pHelper->SetIgnoreDataPackets(TRUE);
                    // We don't need to create a new helper
                    bNeedCreate = FALSE;
#ifdef XXXMEH_DEBUG_OUT
                    DEBUG_OUT(m_pErrorMessages,
                              DOL_REALPIX_EXTENDED,
                              (s, "Image (handle=%lu) already exists and completely decoded. IGNORING data packets.",
                               ulHandle));
#endif
                }
                else
                {
                    // Release this PXImageHelper object
                    HX_RELEASE(pHelper);
                    // Remove it from the map
                    m_pHandleToImageMap->RemoveKey((LONG32) ulHandle);
#ifdef XXXMEH_DEBUG_OUT
                    DEBUG_OUT(m_pErrorMessages,
                              DOL_REALPIX_EXTENDED,
                              (s, "Image (handle=%lu) already exists but not completely decoded. RE-DECODING data packets.",
                               ulHandle));
#endif
                }
            }

            if (bNeedCreate)
            {
                // Create the image helper object
                PXImageHelper* pHelper = NULL;
                retVal                 = PXImageHelper::CreateObject(&pHelper);
                if (SUCCEEDED(retVal))
                {
                    // AddRef the object
                    pHelper->AddRef();
                    // Get the codec for this mime type
                    BOOL      bPresent = FALSE;
                    IUnknown* pUnk     = NULL;
                    retVal             = m_pCodecManager->GetComponent(pszMimeType, &bPresent, &pUnk);
                    if (SUCCEEDED(retVal))
                    {
                        if (bPresent)
                        {
                            // Init the helper object
                            retVal = pHelper->Init(m_pErrorMessages, ulHandle, ulLength, pUnk, ulOpaqueSize,
                                                   m_ulDisplayWidth, m_ulDisplayHeight, m_ulDefaultPixelFormat,
                                                   m_ulDefaultBitsPerPixel, m_bDefaultRowsInverted);
                            if (SUCCEEDED(retVal))
                            {
                                // AddRef the helper object before we add it to the map
                                pHelper->AddRef();
                                // Add the helper object to the map
                                m_pHandleToImageMap->SetAt((LONG32) ulHandle, (void *) pHelper);
                            }
                        }
                        else
                        {
                            retVal = HXR_FAIL;
                        }
                    }
                    HX_RELEASE(pUnk);
                }
                HX_RELEASE(pHelper);
            }
        }
        else
        {
            retVal = HXR_NOT_INITIALIZED;
        }
    }
    else
    {
        retVal = HXR_INVALID_PARAMETER;
    }

#ifdef XXXMEH_DEBUG_ASSERT
    // Debug-only assert
    HX_ASSERT(SUCCEEDED(retVal));
#endif

    return retVal;
}

HX_RESULT PXImageManager::DeleteImage(UINT32 ulHandle)
{
    HX_RESULT retVal = HXR_OK;

    if (ulHandle)
    {
        if (m_pHandleToImageMap)
        {
            // Check to see if there really is an entry for this handle
            void* pVoid         = NULL;
            BOOL  bEntryPresent = m_pHandleToImageMap->Lookup((LONG32) ulHandle, pVoid);
            if (bEntryPresent)
            {
#ifdef XXXMEH_DEBUG_OUT
                DEBUG_OUT(m_pErrorMessages,
                          DOL_REALPIX_EXTENDED,
                          (s, "Deleting image (handle=%lu)",
                           ulHandle));
#endif
                // Release the object
                PXImageHelper* pHelper = (PXImageHelper*) pVoid;
                HX_RELEASE(pHelper);
                // Remove it from the map
                m_pHandleToImageMap->RemoveKey((LONG32) ulHandle);
            }
            else
            {
                retVal = HXR_FAIL;